Is there a way to adapt time-series products like this to analysis of categorical data, in my case audit logs. I'd love to be able to suss out patterns/cluster

Is there a way to adapt time-series products like this to analysis of categorical data, in my case audit logs. I'd love to be able to suss out patterns/clusters/sequences but most of the stuff I've looked at requires you to do unnatural things like flip the categorical content into distinct dimensions with a calculated rate metric.